diff --git a/1.3/Dockerfile.amd64 b/1.3/Dockerfile.amd64
index a45eb33..9793dbe 100644
--- a/1.3/Dockerfile.amd64
+++ b/1.3/Dockerfile.amd64
@@ -1,4 +1,4 @@
-FROM alpine:3.11@sha256:39eda93d15866957feaee28f8fc5adb545276a64147445c64992ef69804dbf01
+FROM alpine:3.20@sha256:beefdbd8a1da6d2915566fde36db9db0b524eb737fc57cd1367effd16dc0d06d
 
 LABEL maintainer="Thorsten Schifferdecker https://github.com/curx" \
   org.label-schema.vendor="Thorsten Schifferdecker" \